Many hair products contain endocrine‐disrupting compounds and carcinogens.
Women who regularly use permanent hair dye could be increasing their risk of breast cancer up to 60 percent, according to scientists writing in the International Journal of Cancer.
A study based on the medical records of more than 45,000 women found a positive correlation between permanent hair dye and breast cancer—particularly among those who are black.
While the paper is based on patterns and trends and, as such, doesn’t confirm a direct cause, it adds to research suggesting there may be carcinogens lurking in commonly-used beauty products.
Source » International Journal of Cancer